CiDRA Passive Sonar Transmitters - Manual (Page 35)

Table 5 Modbus Holding Registers (continued)
Address Size Type Value Description Values
3512 1 Short
VF_SPIKE_PCT_WI
NDOW_LEN Number of good measures before VF spike filter passes
measurements as ‘good’.
3513 1 Short
GVF_NR_FILTER_E
NABLE
Enables or Disables Noise Reduction Filter of the GVF. 0 = Disable, 1 = Enable
3514 1 Short
GVF_LOW_FILTER_
ARRAY_LEN
Defines the length of the delta array for GVF.
3515 1 Short
GVF_HIGH_FILTER
_ARRAY_LEN
Defines the length of the delta array for GVF.
3516 1 Short
GVF_1ST_ORDER_
DAMPING_FILTER_
ENABLE
Enables or Disables 1st Order Damping Filter of the
GVF.
0 = Disable, 1 = Enable
3517 1 Short
GVF_SPIKE_FILTE
R_ENABLE
Enables or Disables Spike Filter of the GVF. 0 = Disable, 1 = Enable
3518 1 Short
GVF_SPIKE_NO_FL
OW_LEN Number of good measures during initialization before
GVF spike filter passes measurements as ‘good’.
3519 1 Short
GVF_SPIKE_FILTE
R_LEN Defines the number of consecutive valid measurements
before displaying.
3520 1 Short
GVF_SPIKE_UP_C
OUNT
Number of counts to INCREMENT the GVF Bad Quality
counter when measured GVF quality is below the
minimum.
3521 1 Short
GVF_SPIKE_DOWN
_COUNT
Number of counts to DECREMENT the GVF Bad Quality
counter when measured GVF quality is below the
minimum.
3522 1 Short
GVF_SPIKE_PCT_
WINDOW_LEN Number of good measures before GVF spike filter
passes measurements as ‘good’.
4001 2 Float PIPE_DIAM Define pipe ID in inches.
4003 2 Float
SOS_PIPE_WALL_T
HICK SOS pipe wall thickness measurement in units selected
by 'SOS Pipe Wall Thickness Units'.
4005 2 Float
SOS_PIPE_MODUL
US
SOS pipe modulus value.
4007 2 Float
SOS_GAS_CONST
ANT
Gas constant value used in GVF calculation.
20959-01 Rev 02 Page 3-20